Cetraria laevigata
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| Cetraria laevigata | |
|---|---|
 | |
Scientific classification  | |
| Kingdom: | Fungi |
| Division: | Ascomycota |
| Class: | Lecanoromycetes |
| Order: | Lecanorales |
| Family: | Parmeliaceae |
| Genus: | Cetraria |
| Species: | C. laevigata |
| Binomial name | |
| Cetraria laevigata Rass. (1943) | |
Cetraria laevigata is a species of ground-dwelling, fruticose (bushy) lichen in the family Parmeliaceae. It was formally described as a new species by Russian lichenologist Kseniya Aleksandrovna Rassadina in 1943. In North America, it is commonly known as the striped Iceland lichen.[2]
The thallus of Cetraria laevigata is pale brown, with an even paler underside.[3] It comprises smooth and shiny, narrow lobes measuring 1–3 mm across.[2] It has pseudocyphellae (tiny pores for gas exchange) on its margins.[3] The major lichen products in Cetraria laevigata are fumarprotocetraric acid, protolichesterinic acid, and lichesterinic acids. The expected results of standard lichen spot tests on the medulla are PD+ (red), K−, KC−, and C−.[2]